Baking Converter

Water: Cups to Grams

By Nathan Hays · Updated July 26, 2026

1 cup of water weighs 237 grams (8.36 oz), measured spooned and leveled. The full chart below covers every common cup measure, and the converter handles any other amount.

Quick answer: 1 cup = 237 g · 1/2 cup = 118 g · 1 tablespoon = 14.8 g · 1 teaspoon = 4.9 g

Water conversion chart

US cupsGramsOunces
1/4 cup59 g2.09 oz
1/3 cup79 g2.79 oz
1/2 cup118 g4.18 oz
2/3 cup158 g5.57 oz
3/4 cup178 g6.27 oz
1 cup237 g8.36 oz
1 1/2 cups356 g12.54 oz
2 cups474 g16.72 oz

Grams to cups, in reverse

GramsCups (approx.)
50 g0.21 cups
100 g0.42 cups
200 g0.84 cups
250 g1.05 cups
500 g2.11 cups

About this weight

Physics: 1 g/ml at room temperature. Published charts for water typically range from 236-240 grams per cup, depending on how the cup is filled. Our figures follow a two-source policy: King Arthur's spooned-and-leveled weights for dry ingredients, and measured density for liquids. The typical published range is shown so you can see how much methods differ. For baking accuracy, weigh with a scale whenever a recipe gives grams; see why bakers weigh.

Convert any amount of water instantly with the free baking converter.

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